Penguin Pajama Bottoms

penguin
Penguins (order Sphenisciformes, family Spheniscidae) are a group of aquatic, flightless birds living almost exclusively in the southern hemisphere, especially in Antarctica.
A large flightless seabird of the southern hemisphere, with black upper parts and white underparts and wings developed into flippers for swimming under water
short-legged flightless birds of cold southern especially Antarctic regions having webbed feet and wings modified as flippers
Penguin is the seventh album by British rock band Fleetwood Mac, released in 1973. It was the first Fleetwood Mac album to feature Bob Weston and the only one to feature Dave Walker. The penguin is the band mascot favoured by John McVie.

bottoms
The Bottoms is a neighborhood in Columbus, Ohio, U.S. It is the area immediately west of Downtown Columbus. The area contains the Franklinton neighborhood, and is in West Columbus. It is the area enclosed by I-70 on the west and south, I-670 on the north, and the Scioto River to the east.
The lowest point or part
The lower surface of something
A term used in connection with the Orford process for nickel and copper which have separated as sulfides. When the mixed sulfides are fused with sodium sulfide, the nickel sulfide separates to the bottom. Hence bottoms as distinct from tops.
The part on which a thing rests; the underside
The Bottoms is a Site of Special Scientific Interest in County Durham, England. It lies just south of the A181 road, roughly midway between the villages of Cassop and Wheatley Hill, some 10 km south-east of Durham city.

pajama
a pair of loose trousers tied by a drawstring around the waist; worn by men and women in some Asian countries
(usually plural) loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers
Pajamas, also spelled pyjamas (see also spelling differences) can refer to several related types of clothing. The original paijama are loose, lightweight trousers fitted with drawstring waistbands and worn in South and West Asia by both sexes.